Stove



Patented Sept. 21, 1937 -UN1TEDfs'rATEs Frank G. Riordan, Spokane,Wash., assigner of one-half to Louise E. Burchett, one-tenth to CharlesBurchett, one-tenth. to Clarence Bur-- chett, one-twentieth toMGeorgeBurchett,fa`nd one-fifth to Irwin Enosg'all of Spokane, Wash.

vApplication August 18, 1936, Serial No. 96,668

' z claims. (ci. 1216-67) This invention relates'to a stove, and moreparticularly to a stove of the drum type used in small buildings or toheat one room of a building.

One object of the invention is tov provide a stove wherein the fire box,ash pit and the heating drum are enclosed in a casing through which airpasses about the drum and becomes heated as it passes upwardly throughthe casing from entrances near the bottom thereof to an outletconsisting of a grating at the top of the casing.

Another object of the invention is to so form the drum portion of thestove that it will have a large area from which heat is to radiate andwarm the air moving upwardly through the casing.

Another object of the invention is to provide improved means fordirecting hot gases and other products of combustion upwardly from thefire box through the drum and thus cause the walls of the drum to behighly heated.

It is another object of the invention to provide an improved type ofhead or upper end portion for the drum, this portion serving to connectthe drum with the smoke pipe and being so constructed that passage ofproducts of combustion will be retarded and the upper portion of thedrum caused to be very hot.

The invention is illustrated in the accompanying drawing, wherein Figure1 is a perspective view of the improved stove.

Figure 2 is a sectional View taken vertically through the stove alongthe line 2 2 of Figure 1.

Figure 3 is a sectional view taken transversely through the stove alongthe line 3-3 of Figure 1. This improved stove has a casing I which maybe formed of sheet metal or any other material desired and is supportedby a base 2 having floor engaging legs 3 to support it in an elevatedposition. The top 4 of the stove is sup- 40 ported upon the upper edgesof walls of the casing and is removable therefrom so that access may behad to the interior of the casing in order to install the heating drumor to clean or repair thesame when necessary. Slots are formed in 45 thetop as shown in Figures 1 and 2, thereby providing a grating 5 throughwhich hot air may pass out of the casing into a room to be heated. Theair enters the casing near the bottom thereof through inlets 6 providedin each side wall of the 50 casing and also in the back wall thereof, ifso desired.

Within the casing is mounted a heating unit form-ed of cast metal andhaving a lower section 1 and an upper section or drum 8. The heating 55unit is of appreciably less dimensions than the casing, as shown inFigures 2 and 3, thus provid'- ing space 9 about the heating unitthrough which the air passes as it moves upwardly through the casing.The lower section carries a grate I 0 dening a iire box I I and an ashpit I 2 and in order to permit access to the same the front wall of thecasing is provided With a fire door I3 and an ash door I4.

The upper section or drum 8 of the heating unit is of a specialformation and has its opposed side walls crimped, as shown in Figure 2,to divide the drum into superimposed sections I5 provided with taperedside portions having outwardly converging upper and lower wall portionsI6 and I1. A deflector plate I 8 is mounted in the re box under therestricted entrance at the lower end of the drum and spreader plates I9are mounted in the sections I5 of the drum with portions extending intothe tapered side portions thereof. By providing the plates I8 and I9,the gases and other products of combustion will be forced to passthrough all portions of the drum as they move upwardly through the sameand the walls of the drum will be highly heated. The converging wallportions I6 and I'I provide the drum with a large area from which heatradiates into the space 9 between the drum and walls of the casing Iand, therefore, an` moving upwardly through this space will be highlyheated and pass out through the grating as very hot air. At its upperend, the drum is formed with a head 20 having its upper wall 2l crimpedto provide portions corresponding to the extensions of the chambers ofthe drum and the lower wall 22 of the head is extended, as shown at 23,to provide a dei-lector which extends across the outlet 24 at the upperend of the drum and causes the products of combustion to enter the head20 at the inner end thereof and then move through the head towards theue 25 which projects outwardly through a wail of the casing and isadapted to be connected with a smoke pipe leading to a chimney. Itshould be noted that the crimps of the upper wall of the head extenddownwardly to such an extent that they terminate in close proximity tothe lower wall 22 of the head. This tends to retard quick passage of thesmoke and other products of combustion through the head and the walls ofthe head will be highly heated and assist in warming the air as itapproaches the outlet at the top of the stove.

I have, therefore, provided ahot air stove which is of simpleconstruction and very eiiicient in its operation besides being of neatappearance.

aosassig the top of said drum and having a flat bottom Walla-vv extendedacross the outlet of the drum to pro'- vide a balie, the top Wall of thehead being crimped transversely to provide depending portionsterminating adjacent the at lower wall of the head and retarding passageof products of combustion through the head.

2. In a stove, a casing having an air' outlet at its top and means foradmitting air adjacent its 20 bottom, and a heating unit in said casingcom' prising a-,lowersection and an upper section; the

lower section providing a fire box and the upper section constituting aheating drum having a restricted opening at its bottom establishingcommunication with the fire box, opposed walls of said drum beingcrimped inwardly transversely of the 5 drum to provide the drum withsuperimposed sections having tapered end portions formed by outwardlyconverging' crimped portions of the walls, and a head at the top of saiddrum extending transversely across the same and terminating in 1 a smokeue projecting through a wall of the casing, said head having a flatbottom wall proa-jectedfinwardly across an opening between the -Kheadand thelupper end of the drum, and the top wall of the, head beingcrimped transversely 1 toprovide downwardly converging Wall portionsterminating adjacent the at lower Wall of the head and retarding passageof products of combustion through the head.

' Y FRANK G. RIORDAN.

